Fast Facts IQ on Instagram: "In November 2012, Cari Farver, a 37-year-old woman from Omaha, vanished after visiting her boyfriend, Dave Kroupa. They had met through a dating app and agreed to keep things casual, but shortly after, Dave began receiving disturbing text messages from someone pretending to be Cari. The messages became obsessive and threatening, targeting both Dave and another woman he was seeing named Shanna “Liz” Golyar. Cari’s family also got similar messages, giving the illusion